During the Mid-Autumn Palace Banquet, the Empress Dowager, who had been living in seclusion at the Buddha hall for five years, unexpectedly heard the inner thoughts of the orphan girl A Man, and was shocked to discover that she was actually her switched biological granddaughter. A Man had suffered countless grievances since childhood, possessed the ability of mind-reading, and her biological mother, the Eldest Princess Zhaoyang, was framed by the consort and died under a false grievance. The Empress Dowager resolutely came out of seclusion, joining forces with the Emperor to thoroughly investigate the old case, and purge traitors such as the consort and the Empress. After enduring numerous trials together, A Man broke free from the shadows of her childhood, refused to marry the powerful and noble, and put on armor to guard the borderlands. She let go of personal grievances to establish charitable houses, protected the women and children of the Great Zhou with a benevolent heart, and grew from an orphan girl in the woodshed into the Guardian Princess of the Country with a heart for the world.